Integrated magnetostrictive-piezoelectric-metal oxide semiconduc

Dynamic magnetic information storage or retrieval – Head – Hall effect


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365157, G11B 512, G11B 530




A thin-film magnetic recording playback head is disclosed wherein mechanically coupled films of a magnetostrictive material and of a piezoelectric material are deposited on a substrate together with a solid state amplifier which is coupled to the piezoelectric film. In operation, localized magnetic patterns on a recording medium induce stress in the magnetostrictive film, which in turn induces in the piezoelectric film a corresponding electrical polarization of non-equilibrium charge density, having a potential associated therewith which is applied to the solid state amplifier.

patent: 2683856 (1954-07-01), Kornei
patent: 3344237 (1967-09-01), Gregg
patent: 3389230 (1968-06-01), Hudson, Jr.
patent: 3553540 (1971-01-01), Puterbaugh, Jr.
patent: 3800193 (1974-03-01), Ashar et al.
patent: 3908194 (1975-09-01), Romankiv
patent: 3909809 (1975-09-01), Kinsner et al.
patent: 3987485 (1976-10-01), Sugaya et al.
patent: 4048648 (1977-09-01), Vinal
patent: 4129880 (1978-12-01), Vinal
patent: 4210946 (1980-07-01), Iwasaki et al.
patent: 4275428 (1981-06-01), Lehureau
Brunsch et al., IBM Tech. Discl. Bull., vol. 21, No. 2, Jul. '78, pp. 667-668; "Magnetic Read/Write Thin Film Head with Variable Adjustable Anisotropy".
Bracke et al., Int. J. Elect. 1981, vol. 51, No. 3, 255-262; "A Broadband Magneto-Electric Transducer using a Composite Material".
Patents Abstracts of Japan, vol. 1, No. 148, Nov. 29, 1977, p. 7660, E 77 & JP-A-52 88317 (Nippon Kenki K.K.), 07-23-1977.
IBM Technical Disclosure Bulletin, vol. 8, No. 3, Aug. 1965, pp. 359-360, Armonk, New York, USA, A. T. Germano et al., "Transducer Head Assembly Including Modified Field Effect Coupling".
IBM Technical Disclosure Bulletin, vol. 16, No. 8, Jan. 1974, pp. 2491-2492, Armonk, New York, USA, F. F. Fang et al., "Piezoresistive Bubble Domain Detector".
IBM Technical Disclosure Bulletin, vol. 17, No. 11, Apr. 1975, pp. 3478-3480, Armonk, New York, USA, R. Anderson et al., "Balanced Resistance Magnetoresistive Head Compensated Against Thermal and Piezoresistive Effects".
IBM Technical Disclosure Bulletin, vol. 18, No. 1, Jun. 1975, p. 24, Armonk, New York, USA, S. H. Smith, "Magnetoresistive Magnetic Head".
IBM Technical Disclosure Bulletin, vol. 17, No. 7, Dec. 1974, p. 1862, Armonk, New York, USA, S. D. Cheatham et al., "Self-Biased, Noise-Free Magnetoresistive Head".


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